Hello and thank you for your question. For some, the glabellar muscle (muscles responsible for frowning) can build up from over-use and give this appearance. Botox can definitely help with your concerns. Botox is a purified protein injected right into the muscle which relaxes it and creates a smoother look. Botox can not only help smooth out the indentation, but can also prevent it from getting worse. Continued use of Botox (every 3 to 4 months) will improve the area even more. Fillers can also help to camouflage the divot, however I would suggest testing the benefits of Botox first, as there can be complications if fillers are improperly injected in that area. Please see an experienced injector specializing in aesthetics for best results! Best of luck!